traefik/vendor/github.com/vulcand/oxy/cbreaker/effect.go
2018-01-22 12:16:03 +01:00

78 lines
1.4 KiB
Go

package cbreaker
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"strings"
log "github.com/sirupsen/logrus"
"github.com/vulcand/oxy/utils"
)
type SideEffect interface {
Exec() error
}
type Webhook struct {
URL string
Method string
Headers http.Header
Form url.Values
Body []byte
}
type WebhookSideEffect struct {
w Webhook
}
func NewWebhookSideEffect(w Webhook) (*WebhookSideEffect, error) {
if w.Method == "" {
return nil, fmt.Errorf("Supply method")
}
_, err := url.Parse(w.URL)
if err != nil {
return nil, err
}
return &WebhookSideEffect{w: w}, nil
}
func (w *WebhookSideEffect) getBody() io.Reader {
if len(w.w.Form) != 0 {
return strings.NewReader(w.w.Form.Encode())
}
if len(w.w.Body) != 0 {
return bytes.NewBuffer(w.w.Body)
}
return nil
}
func (w *WebhookSideEffect) Exec() error {
r, err := http.NewRequest(w.w.Method, w.w.URL, w.getBody())
if err != nil {
return err
}
if len(w.w.Headers) != 0 {
utils.CopyHeaders(r.Header, w.w.Headers)
}
if len(w.w.Form) != 0 {
r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
}
re, err := http.DefaultClient.Do(r)
if err != nil {
return err
}
if re.Body != nil {
defer re.Body.Close()
}
body, err := ioutil.ReadAll(re.Body)
if err != nil {
return err
}
log.Infof("%v got response: (%s): %s", w, re.Status, string(body))
return nil
}